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Abstract

The present retrospective study included all the patients older than 18 years diagnosed with L4-L5 facet involvement and facetogenic pain who underwent peri-articular injection using the blind technique at the Physical Medicine and Rehabilitation Clinic of the Shariati Academic Hospital, Tehran, Iran, during 2015-2020. Moreover, the participants had lumbosacral radiographs and MR images in their medical records. The data were extracted from the patients' medical records. The patients with incomplete records, a history of